Best Backflow Preventer Certification in Seattle WA

Respond fast and great service! She's knowledgeable and professional. I am recommending her to my neighbors and I would definitely keep using services from them for my future backflow testing.

Our townhome complex used Backflows Northwest for the past two years, and everything went without a hitch. The office staff helped us turn around the scheduling in a relatively short timeline, as our testing was coming due. They even reached out to the city on our behalf to let them know the testing was scheduled. The technicians were on time, friendly, and worked efficiently. All paperwork submitted to the city shortly after testing was done. Billing was simple, and they billed each unit individually in our group to make things even easier.

Overall great experience, and we plan to keep using them in the future.

Very friendly, reliable, prompt, and professional. He does it all: the back flow testing (of course), filing the results with the city, and if it needs it, repair of the back flow valve assembly. I'm delighted to have seen him for three years in a row!